Type-writer.



PATENT'ED FEB. 12, 1907.

I 0. T. BROWN. TYPE WRITER.

APPLICATION FILED JAN.24.1906.

Wikhess s- Inventor,

Clark Tag Jar Brown W .b %WZ%MML azmifla/t Aftarngy. I

THE NORRIS PE 0., WASHINGTON, n, c

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TYPE-WRITER.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed nuary 24,1906. Serial No. 297,554.

To (ti/l Lu/win it nutty concern: 1

Be it known that I, CLARK TAYLOR BROWN, a citizen of the United Statesof America, and a resident of the borough of Brooklyn, in the city ofNew York, county of Kings, and State of New York, have invented certainnew and useful Improvements in Type-Writers, of which the following is aspecification.

My invention relates to a construction of type-bars in that class oftype-writers wherein a series of type-bars are mounted to strike at acommon printing-point and are guided near their heads by a guide with aflaring slot, into which each type-bar strikes as it approaches theprinting-point.

The object of the invention is to provide means whereby in event of atype-bar being held in the guide while a second type-bar is beingoperated that the second bar will be prevented from entering the spaceon either side between the first type-bar and either side of the flaringslot in the guide, so as to become wedged.

In the accompanying sheet of drawings, which forms a part of myapplication, Figure 1 is a vertical section through thetype-barsupporting segment of a type-writer, showing two typebars, atype-bar guide, and a platen constructed in accordance with myinvention; and Fig. 2 is a top view of the guide at a section throughtwo type-bars on the line 11 II of Fig. 1.

My invention is illustrated in connection with a machine of thewell-known Underwood type, wherein type-bars are mounted in a segment ofless than a half of a circle, so as not to obstruct a View of thewriting as it is written, as set forth in Reissue Letters Patent of theUnited States No. 12,252, dated August 2, 1904.

A segment B, which is incorporated in the framework of the type-writer,affords pivotal support for all of a series of type-bars O C but owingto the confined pivotal space permissible for each type-bar a guide 1)is supported from the segment in proximity to the printing-point 1) of aplaten E. The guide has a slot into which the type-bars strike.

The purpose of the guide is to accurately position the heads of thetypebars at the printing-point. The guide has a flaring slot, betweenthe sides of which the type-bars are guided, the slot being wider at theend at which the type-bars enter than the thickness of the type-bars andnarrowing toward its l other end to a width equal to the thicknesses ofthe type-bars at the points engaged by the guide, so that each will beproperly positioned by the guide at the moment of printing. 'ljhis guideis necessary, particularly in a machine having all the type-bars pivotedin an arc of less than half of a circle, because there is insufficientspace to accurately position the type-heads at the printing-point bymeans of the pivotal supports. l/Vith such a guide and type-bars such ashave been heretofore constructed occasionally when writing rapidly and atype-bar is in place in the guide a second type-bar may be operated,with the result frequently that the second typebar is driven into the\/shaped space between the first type-bar and one side or the other ofthe slot in the guide, and both type-bars become so wedged that sometime and effort is necessary to clear them. Possibility of such wedgingis eliminated by the construction herein set forth, which consists inthe provision of a broad spot 8 at a point on the back of each type-barnear its type-head, where if the type-bar is in the guide and a secondtype-bar is operated the second type-bar will strike the broad spot oranvil on the first bar, and the second type-bar cannot pass between theside of the first type-bar at either side of the slot in the guide andbecome wedged.

It is not necessary for the function above set forth that the broad spotshould be eX- actly opposite the guide and actually cover the wide endof the slot in the guide, but only that it should appear to do so whenviewed in the direction of the shank of the type-bar when in the guide,as illustrated in Fig. 2, sufliciently to prevent the entrance of asecond. type-bar.

WVhat I claim as new, and desire to secure by Letters Patent of theUnited States, is

1. In a writing-machine, the combination with a platen of a guide with aflaring slot in proximity to the printing-point of the platen, and aseries of type-bars mounted to strike into the slot, the back of eachtype-bar having a width at a point adjoining the head and clear of theguide sufficient when the typebar is in the guide to prevent theentrance and wedging of a second type-bar, substantially as described.

2. In a writing-machine, the combination with a platen of a guide with aflaring slot in proximity to the printing-point of the platen, and aseries of type-bars mounted to strike into the slot, the back of eachtype-bar hav- 1 rear thicker than the front portion of the bar ing aWidth at a point adjoining the head and entering the slot, and ofsufficient Width between the head and type-harpivot suflicient When thetype-bar is in the guide to prevent When the type-bar is in the guide toprevent the entrance therein of a second type-bar. the entrance andWedging of a second type Signed by me at New York, N. Y., this bar,spbstantially as delscribeclil. b 22d day of January, 1906.

3. n a Writing-mac line, t e coin ination 7 With a platen of a guidewith a flared slot in CLARK 1A1 LOB BROWN proximity to theprinting-point, and a series Witnesses: I of type-bars mounted to strikein the slot, SAMUEL WV BALoI-I, each of the type-bars having a portionof its MARIE A. CORGE.

